chore(deps): bump ilammy/msvc-dev-cmd from 1 to 1.8.0 (#10)

.github/workflows/pip.yml

@@ -65,7 +65,7 @@ jobs:
     # MSVC, but for now, this action works:
     - name: Prepare compiler environment for Windows 🐍 2.7
       if: runner.os == 'Windows'
-      uses: ilammy/msvc-dev-cmd@v1
+      uses: ilammy/msvc-dev-cmd@v1.8.0
       with:
         arch: x64